Stewart was just 18 when "Twilight" made her a superstar. (Getty Images)

Stewart was just 18 when "Twilight" made her a superstar. (Getty Images)

Photo: Getty Images

Stewart was just 18 when "Twilight" made her a superstar.... Photo-688073.52217 - seattlepi.com

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Same pose. Different look. Somewhere along the way, sexy started happening. (Getty Images)

Same pose. Different look. Somewhere along the way, sexy started happening. (Getty Images)

Photo: Getty Images

Same pose. Different look. Somewhere along the way, sexy started... Photo-721115.52217 - seattlepi.com

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"Twilight" solidified Stewart in the eyes of the world as the other half of Robert Pattinson. (That's Edward the vampire, of course.) Celebrity couple names: Kristbert or Bellward -- take your pick. Here they are in "New Moon," when things were still sweet and innocent. (Getty Images) less

"Twilight" solidified Stewart in the eyes of the world as the other half of Robert Pattinson. (That's Edward the vampire, of course.) Celebrity couple names: Kristbert or Bellward -- take your pick. Here they ... more

Photo: Photo: Kimberley French

"Twilight" solidified Stewart in the eyes of the world as... Photo-1663692.52217 - seattlepi.com

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My, how things heated up a few movies later. Here are Pattinson and Stewart as Edward and Bella in "The Twilight Saga: Breaking Dawn Part 1." (Getty Images)

My, how things heated up a few movies later. Here are Pattinson and Stewart as Edward and Bella in "The Twilight Saga: Breaking Dawn Part 1." (Getty Images)

Photo: ANDRE COOPER

My, how things heated up a few movies later. Here are Pattinson and... Photo-1631386.52217 - seattlepi.com

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Stewart won a few awards for her portrayal of Bella ... (Getty Images)

Stewart won a few awards for her portrayal of Bella ... (Getty Images)

Photo: Getty Images

Stewart won a few awards for her portrayal of Bella ... (Getty Images) Photo-771811.52217 - seattlepi.com

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Even one for best on-screen kiss. (Don't worry. This wasn't the kiss. That's just awkward ...) (Getty Images)

Even one for best on-screen kiss. (Don't worry. This wasn't the kiss. That's just awkward ...) (Getty Images)

Photo: Getty Images

Even one for best on-screen kiss. (Don't worry. This... Photo-754117.52217 - seattlepi.com

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And that brings us back to present-day Stewart. Here, she attends the "On The Road" premiere during the 2012 Toronto International Film Festival. (Jason Merritt / Getty Images)

And that brings us back to present-day Stewart. Here, she attends the "On The Road" premiere during the 2012 Toronto International Film Festival. (Jason Merritt / Getty Images)

And that brings us back to present-day Stewart. Here, she attends... Photo-3421748.52217 - seattlepi.com

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OK, so now let's talk about Robert Pattinson, Stewart's co-star and former flame. Here he is -- classically rugged and just a bit vampire-like in recent months. (Getty Images)

OK, so now let's talk about Robert Pattinson, Stewart's co-star and former flame. Here he is -- classically rugged and just a bit vampire-like in recent months. (Getty Images)

OK, so now let's talk about Robert Pattinson, Stewart's... Photo-3547407.52217 - seattlepi.com

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And here's 20-year-old Pattinson shortly after playing Cedric Diggory in "Harry Potter and the Goblet of Fire" in 2006. (Getty Images)

And here's 20-year-old Pattinson shortly after playing Cedric Diggory in "Harry Potter and the Goblet of Fire" in 2006.
(Getty Images)

In this photo, Pattinson arrives at the "Water for Elephants" premiere in 2011. Hmmm. He doesn't age, so he must really be a vampire. (Getty Images)

In this photo, Pattinson arrives at the "Water for Elephants" premiere in 2011. Hmmm. He doesn't age, so he must really be a vampire. (Getty Images)

Photo: Getty Images

In this photo, Pattinson arrives at the "Water for... Photo-998211.52217 - seattlepi.com

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Yes, you. Have we checked to see if he really sparkles? This photo is from 2011 in New York. (Getty Images)

Yes, you. Have we checked to see if he really sparkles? This photo is from 2011 in New York. (Getty Images)

Photo: Jason Kempin, Getty Images

Yes, you. Have we checked to see if he really sparkles? This photo... Photo-944877.52217 - seattlepi.com

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Actress Christina Ricci poses with Pattinson and a new haircut at the Berlin International Film Festival in 2012. New haircut, same youthful look. You're not fooling anyone, Robert. Or should we say ... Mr. Vampire. (Getty Images) less

Actress Christina Ricci poses with Pattinson and a new haircut at the Berlin International Film Festival in 2012. New haircut, same youthful look. You're not fooling anyone, Robert. Or should we say ... Mr. ... more

Enough about vampires. Let's talk about werewolves. Taylor Lautner, seen here in recent months, has long given pre-teen girls something to giggle about in his role as "Twilight's" Jacob Black. (Getty Images)

Enough about vampires. Let's talk about werewolves. Taylor Lautner, seen here in recent months, has long given pre-teen girls something to giggle about in his role as "Twilight's" Jacob Black. (Getty Images)

Once upon a time, Lautner looked like this. Here, he's seen with Taylor Dooley, who played Lavagirl to his Sharkboy in "The Adventures of Sharkboy and Lavagirl in 3-D." The movie came out in 2005, when Lautner was 13. Awwww. But, what's a sharkboy? (Getty Images)

Once upon a time, Lautner looked like this. Here, he's seen with Taylor Dooley, who played Lavagirl to his Sharkboy in "The Adventures of Sharkboy and Lavagirl in 3-D." The movie came out in 2005, when Lautner

We're betting Lautner has to exercise pretty hard to keep himself in shirtless shape. This photo was taken at DIRECTV's 4th Annual Celebrity Beach Bowl on Feb. 6, 2010 in Miami Beach, Fla. Go, Taylor, go. Run like a wolf. (Getty Images) less

We're betting Lautner has to exercise pretty hard to keep himself in shirtless shape. This photo was taken at DIRECTV's 4th Annual Celebrity Beach Bowl on Feb. 6, 2010 in Miami Beach, Fla. Go, Taylor, go. Run ... more